Magnetic aquarium thermometer



FIG. 1 is a top plan view of the magnetic aquarium thermometer showing our new design.

FIG. 2 is a front elevational view thereof.

FIG. 3 is a first side elevational view thereof.

FIG. 4 is a side elevational view of the opposite side thereof, and

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a magnetic aquarium thermometer, substantially as shown and described. 